US6763561B2 - Continuous casting and hot rolling apparatus for parallel production of multiple metal shapes - Google Patents

Continuous casting and hot rolling apparatus for parallel production of multiple metal shapes Download PDF

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US6763561B2
US6763561B2 US10/151,686 US15168602A US6763561B2 US 6763561 B2 US6763561 B2 US 6763561B2 US 15168602 A US15168602 A US 15168602A US 6763561 B2 US6763561 B2 US 6763561B2
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strands
rolling
stands
rolls
line
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US20020189075A1 (en
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Ferruccio Sclippa
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SMS Siemag AG
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SMS Demag AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/005—Cantilevered roll stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B2013/006—Multiple strand rolling mills; Mill stands with multiple caliber rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/22—Hinged chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/04—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5184—Casting and working

Definitions

  • the present invention relates to a continuous casting and hot rolling apparatus for the parallel production of different metal shapes, especially rods, wires and other rolled workpieces with a variety of cross sections.
  • the strand is produced at a flow-shaping unit, e.g. a continuous caster, from which an elongated strand is withdrawn, e.g. between a pair of pinch or squeeze rolls which can engage the strand from opposite sides.
  • a flow-shaping unit e.g. a continuous caster
  • the initial shape of the strand is imparted by the casting mold or by some other die or the like through which the metal is forced, e.g. by the extraction of the shaped strand at the discharge end or by the application of pressure at the inlet end.
  • the strand is rolled, usually after cutting into billets, to reduce its cross section, i.e. so as to make the workpiece thinner in at least one transverse dimension and to modify, if desired, the cross sectional shape.
  • the rolling process may require a number of passes or passage through a succession of roll stands, or both, until the desired cross section is achieved.
  • roll speeds must be increased continuously or stepwise from relatively slow speeds of the order of meters per minute to speeds of say 30 m/sec in the case of straight metal sections or shapes or 100 m/sec in the case of spooled metal wire, or more.
  • German Patent Document 40 098 61A a rolling line is described for the production of steel rod and in which the rolling line acts directly on a plurality of strands which derive from a continuously cast strip divided downstream of the continuous caster into the plurality of billets.
  • a flat product is likewise subdivided into a multiplicity of billets which ultimately are separated from one another after having been transformed into rectangular portions located in diagonal relationship to one another and connected at corners of the respective cross section.
  • the subdivision is not effected in conjunction with a continuous casting.
  • the flattened slab is initially subjected in a primarily rolling to a predetermined cross sectional reduction and reduction of thickness prior to the subdivision and is grooved in subsequent rollings before being split.
  • a continuous caster serves as the source of the initial slab and is followed by a hot rolling line which ultimately produces the separate parallel-made products in the form of bar, rod or wire.
  • the rolling portion of the line comprises a first rolling unit for rolling the continuously cast slab with progressive reduction in cross section.
  • the second rolling unit with opposing grooved rolls, serves to produce a longitudinally grooved slab.
  • EP 0 876 225 Upstream of the first rolling unit, EP 0 876 225 provides:
  • a continuous caster which continuously supplies the flat slab or bloom having a thickness less than 80 mm, preferably about 50 nm and adapted to be subdivided into the individual product units;
  • an induction furnace of tunnel shape also referred to as an induction tunnel or as an equalizing furnace, for heating the advancing flat bloom or slab from the continuous caster to a hot rolling temperature
  • an edging mill for the lateral rolling and having vertical rollers for shaping the advancing heated bloom or slab to impart to it an exact uniform width
  • a splitting unit following the aforementioned second rolling unit for subdividing the advancing uniform-width bloom along longitudinal lines into a multiplicity of strips, bars or workpieces which can be shaped in parallel and can form the parallel-produced products bar rotators for rotating the resulting plurality or multiplicity of bars or strips by 90°;
  • the system does have the advantage that the prerolling of the continuously case material before subdividing it into lengths, orients the fibers in the rolled material so that elongated fibers which are aligned in the longitudinal direction are formed, thereby improving the uniformity of the products which are obtained and the strength of the products.
  • Still another object of this invention is to provide an apparatus which improved upon that described in EP 0 876 225 both in terms of the product rate and the types of products which can be produced and heat has the advantage of producing elongated workpieces of high strength.
  • a continuous caster having n flow shaping unit with a multistrand mold for casting respective continuous metal strands of different cross sections, where n is an even number but at least equal to 2 or >2;
  • an extractor including at least one pair of pinch rollers below the caster for drawing the strands from the molds;
  • a tunnel-shaped preheating induction furnace downstream of the extractor and traversed by the strands for heating the strands to hot-rolling temperature
  • loop control systems between the hot-rolling line and the apparatus upstream thereof and between the hot-rolling line and the units for compensating for speed variations between relatively upstream and downstream parts of the apparatus.
  • the flow shaping unit constituted by the continuous caster, of the invention is capable of producing at least four mutually adjacent but geometrically different strands and small n can thus be an even number greater than 2, for example, 4, 6, 8, . . . .
  • the reference to a flow-shaping unit or flow-shaping bore is intended to mean a bore in a continuous casting die which may be separated from the other bores thereof or may be a continuous casting die which itself is separate from other continuous casting dies but is capable of producing a continuous strand proximal to the other strands.
  • the shapes can be different from strand to strand or different from one group of strands to another group of strands.
  • the preheating furnace which has been described can be a tunnel shaped induction furnace of the type used in EP 0 876 225.
  • the loop control system or systems which have been described are intended to allow compensation between the upstream and downstream segments of the apparatus in terms of the speeds of the strands through them.
  • the loop control system or systems is described in greater detail below.
  • the rolling stands in the hot rolling line, can provide six horizontal rolls and the mill stands are provided to permit rotation of the rolling directions through 90° between successive passes or segments.
  • the rolls of successive segments can thus be oriented at 90° relative to one another, i.e. can be alternately horizontal and vertical rolls or can be provided such that the workpieces can be rotated through 90° between successive passes.
  • the mill stands of the hot rolling line include both horizontally and vertically oriented rolls and encompass at least a number of vertical roll pairs disposed in two parallel mutually adjacent rows, each of which forms a rolling channel which can be offset from one another by about half the axial spacing so that each row can include n/2 vertical roll pairs which are alternately used for the two rolling channels.
  • the rolling line can consist of six horizontal rolls which can alternate or be replaced by vertical rolls upon a rotation through 90°.
  • the system allows multiple rod, wire and structure shapes to be produced in a very compact apparatus.
  • FIG. 1 is a diagrammatic side elevational view of a portion of the line used for the continuous casting and hot rolling parallel production of multiple metal shapes according to the invention
  • FIG. 1 a is a variant of FIG. 1 .
  • FIG. 2 is a diagrammatic plan view of the apparatus of FIG. 1 rolling mill H/V;
  • FIG. 2 a is a diagrammatic plan view of the apparatus of FIG. 1A rolling mill H;
  • FIG. 3 is a schematic illustration of a portion of the apparatus with rolling mill with horizontal and vertical stands;
  • FIG. 4 is a diagram showing schematically the variations in the sections of the products and the increasing linear speeds (corresponding the final rolling speeds);
  • FIG. 5 is a side view of the continuous casting or flow shaping part of the apparatus
  • FIG. 5 a is a plan view of the portion of the apparatus shown in FIG. 5;
  • FIG. 5 b is a detailed view as seen in the same direction as in FIG. 5 of the continuous casting portion;
  • FIG. 5 c is a plan view showing the flow shaping unit with multistrand mold
  • FIG. 5 d is a vertical section through the portion of the apparatus of FIG. 5 c;
  • FIG. 6 is a side elevational view in the region of the hot rolling line
  • FIG. 6 a is a plan view of this portion of the hot rolling line
  • FIG. 6 b is a diagram similar to that of FIG. 4 showing rolling sections and speeds
  • FIG. 7 is a plan view of the universal units UM of the apparatus of FIGS. 1 a and 2 a;
  • FIG. 7 a is a diagram similar to that of FIG. 4 for this unit.
  • FIG. 7 b is a detailed plan view for one UM universal unit
  • FIG. 7 c is a diagrammatic vertical section showing the drive motor pattern for the universal unit
  • FIG. 7 d is an end view illustrating the layout of the rolling units
  • FIG. 8 is a side view of a horizontal roll stand illustrated in FIGS. 1 and 2;
  • FIG. 8 a is an end view of the stand
  • FIG. 8 b is a top plan view of the latter stand
  • FIG. 9 is a side view of the vertical roll stand with two rows of offset roll pairs as in FIGS. 1 a and 2 a;
  • FIG. 9 a is a plan view thereof
  • FIG. 9 b is a lateral cross sectional view thereof.
  • FIG. 9 c is a front cross section of a vertical mill frame.
  • the shaping portion 10 can comprise, in the embodiment shown, mold multistrand producing strands b 1 , b 2 , b 3 , b 4 which are shown to be generally vertical passages and which produce parallel strands of possibly different cross sectional shapes at the outset. These strands may have different shapes and can be rolled to different products such as polygonal wire or rod, circular wire or rod, and oval wire or rod.
  • the strands coming out of the passages b 1 to b 4 are separate from one another from their formation.
  • the strands pass along the continuous caster cooling line represented at 11 and are engaged along that line between pinch and squeezing rolls as represented diagrammatically at 11 a .
  • Sets of these rolls may be provided along the path 11 and, if desired, part of that path may be formed by a roller bed as shown at 11 b in FIG. 3 .
  • the pinch rolls form an extractor 2 included at last one pair of pinch rolls below the caster for drawing the strands from the molds.
  • An emergency cutting unit 3 can be provided for transversely cutting the strands, Downstream of the extractor 2 and the emergency cutter 3 , I provided an after heating tunnel 5 with inductive heaters and in which the advanced strands are brought to the homogenization and hot rolling temperature.
  • Line 6 comprises 5 roll stands 6 a with horizontal rolls and line 7 comprises 4 roll stands 7 a with vertical and roll stands 7 b alternating therewith having horizontal rolls.
  • the vertical rolls stands are subdivided into two mutually offset roll pairs. If there are n parallel product lines there are thus n/2 numbers of pairs.
  • the horizontal rolls each have n rolling grooves and can alternate with 90° rotators represented at iv in the drawing.
  • the segment HSD is an aftertreatment segment of the line for the aftertreatment of the rolled products and can be an annealing, pickling or like stage or can include a number of stages conventional in wire, rod and thin shape processing.
  • the section WRL (FIGS. 2 and 2 a can be a conventional wire rod line which terminates in a system for winding up the wire on spools in a conventional manner.
  • the storage compartments (hot coil boxes) or more generally loop speed controllers represented by the letters bs are located where required to provide a loop control which synchronizes the speeds upstream and downstream from the hot coil boxes.
  • the loop control permits the speeds upstream and downstream of the loop control to vary from one another.
  • the flow shaping members or molds b 1 , b 2 , b 3 , b 4 . . . b n of the flow shaping unit 10 can comprise individual shaping passages that are mutually adjacent to directly produce discrete or individual, mutually separated strands. Since no slab is required with the present invention, even initially, the entire apparatus can be made more compact than earlier lines for the parallel production of rolled products.
  • FIG. 7 b a mill stand arrangement has been shown which has a multiplicity of vertical mill rolls (see also FIG. 9 a and, according to an important feature of this invention, all of these vertical mill rolls can be driven by a single motor.
  • the continuous casting molds disposed at 10 may have casting ladles 101 mounted on a turn table or rotor structure to enable the ladles to supply a tundish 102 whose outlet nozzles can communicate with the individual passages b 1 , b 2 , b 3 . . . bn.
  • the ladles 101 are, therefore, mounted on vertically disposable carriages 1011 carried by supports 10111 guided on the rotatable column 1012 .
  • the tundish 102 is, in turn, associated with a lateral bridge structure 104 carrying the parts 103 and 1031 of the continuous caster.
  • the continuous casting mold system 10 is itself mounted on a lever mechanism 1001 , 1002 , 1003 , 1004 , 1005 , 1006 powered by a motor drive 1007 .
  • the curved line b of the continuous casting mold 10 is visible.
  • the continuous casting flow shaping unit has two separate cooling chambers c 1 , c 2 in which water of different temperatures is circulated as represented at e 1 , e 2 . This allows for better control of the continuous casting parameters.
  • Naturally two or more mold units of the above described type can be provided.
  • the system allows eight strands, for example, as represented at b 1 . . . b 8 to be produced and thus a corresponding amount of the cast steel of the cast iron to be introduced.
  • the vertical rolling stands (see especially FIGS. 9, 9 a , 9 b and 9 c ). Have two rows of vertical roll pairs 61 , 62 with each row of pairs being driven by a respective drive shift 610 , 620 from a single motor M 6 . Each pair of rolls has meshing cylindrical gears and a number of the rollers in a row have bevel gears meshing with gears on the common shaft, e.g. the shaft 610 in FIG. 9 c.
  • rotation is transferred by means of a first roller pair row to the next or second roller pair row ( 61 ′ with 62 ′, 62 ′ with 61 ′, 622 with 61 ′ etc.).
  • the horizontal roll stands 7 (FIGS. 8, 8 a and 8 b ) have respective pairs of drive shafts 710 , 720 , also driven by a common or single motor M 7 and equipped to drive the respective rolls 71 and 72 .
  • the latter have grooves 73 and 74 for the respective strands b 1 . . . b 8 (FIG. 8 b ).
  • the stand 7 comprises a base 75 carrying the lower roller 72 and an arm 76 carrying the upper roller 71 and secured by a drawbolt 77 to determine the force with which the rod or strand is rolled.
  • the motor M 7 can be mounted on a foundation 78 and drives an input shaft 79 for the transmission 70 whose output shafts 701 are connected to the shafts 710 , 720 which are formed as universal coupling shafts.
  • a shear 8 Downstream of the thermal treatment at TH, a shear 8 (FIGS. 1, 1 a and 3 ) is provided, upstream of the wire rolling line WRL and the reel stand WM (see FIGS. 2 a and 3 ).
  • the end product therefore, can be wire which is collected in reels or spools along a side path, bar stock which continues directly in line and can have larger cross sections, and wire coils formed at RR.
  • the hot coil boxes or compensating chambers bs which can form wire or rod loops, allow compensation for the different speeds between the continuous casting stage and subsequently, between rolling stages and between rolling stages and cutting and further processing stages, i.e. generally between upstream and downstream segments of the path operating at different speeds.
  • the storage can involve loop formation in the strand.
  • the wire rolling line WR or WRL is comprised (see especially FIGS. 2 and 2 a ), of two laterally disposed compact rolling units with two horizontal parallel rolling lines, each of which comprises (FIGS. 7, 7 a , 7 b , 7 c ) three rim driven transmission shafts 02 , 03 and 04 , e.g.
  • the unit along the wire rolling line WR or WRL is thus a universal mill which comprises a single motor m 1 whose individual motor axis drives a transmission represented diagrammatically at m 11 which can be considered, in its simplified form, to mesh with three pinion gears G 21 , G 31 , G 41 for aforementioned rim driven shafts 02 , 03 and 04 and the respective mill frame OR, VR, VL and hence the respective pairs of rollers.
  • the pairs of rollers are generically represented at V rr .
  • Two of the shafts ( 03 and 04 ) are located at the vertices of a base of an equilateral triangle and the third shaft 02 lies at the upper vertex of that equilateral triangle.
  • the mills VR and VL respectively provide vertical rolls for the right hand line L 2 and the lefthand line L 1 while the rolls ORR of the units OR and OL affect the horizontal rolling of the strands along lines L 1 and L 2 respectively.
  • the units OR and OL are alternately oriented to the right and to the left along their common drive shaft 02 . All of the vertical and horizontal rolls at the right hand side are thus oriented along the line L 2 while all of the rolls at the left hand side are oriented along the line L 1 .
  • the mill stands can reduce the workpieces from about 12 mm round to about 4 mm round or less.
  • FIGS. 1, 1 a and 4 I have shown at A and B the shaping and reduction of a continuously cast originally round strand in the first hot rolling section (stage A) and in the second wire rolling section (stage B) with the final roll speed or the linear speed of the stock in each case.
  • the stock is originally continuously cast with the circular cross section A 1 and has a linear speed of 14 m/min before it enters the first of the rolling mill stands 6 , it can be rolled into an oval A 2 and then by a vertical roll into a circular pattern A 3 or a rhomboid pattern A 4 and then into oval patterns A 5 , a circular pattern A 6 or another polygonyl shape A 7 , ultimately into a wire shape at A 8 in which its linear speed has increased to 12 min per second which corresponds to the speed of the final roll in the stretch 6 , 7 .
  • the hot rolling is effected to produce the stages B 1 through B 10 with an increase in the linear speed from 12 m per second to 85 m per second and corresponding cross sectional reduction.
  • the hot rolling line 6 to 7 has only been illustrated diagrammatically and a difference between the system of FIGS. 1 and 2 and that of FIGS. 1 a and 2 a is that the first section of the hot rolling line 6 in FIGS. 1 a and 2 a consists of horizontal roll stands and means is, therefore, provided for rotating the strands through 90° to effect rolling in two mutually perpendicular directions. That means has been represented at iv. In FIGS. 1 and 2, the vertical and horizontal roll stands alternate with one another in both segments of the hot rolling line portion of the apparatus.

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  • Metal Rolling (AREA)
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US10/151,686 2001-05-25 2002-05-20 Continuous casting and hot rolling apparatus for parallel production of multiple metal shapes Expired - Fee Related US6763561B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD2001A000098 2001-05-25
IT2001UD000098A ITUD20010098A1 (it) 2001-05-25 2001-05-25 Impianto perfezionato di colata continua e laminazione a caldo per la produzione in parallelo diversificata di barre o fili

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EP (1) EP1262248B1 (de)
JP (1) JP2003010904A (de)
AT (1) ATE283736T1 (de)
DE (1) DE50201653D1 (de)
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Cited By (5)

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US20040016478A1 (en) * 2002-07-25 2004-01-29 David Sharpe Inductive heating process control of continuous cast metallic sheets
US20060021411A1 (en) * 2004-07-29 2006-02-02 Shore T M Method of continuously hot rolling a heated billet into a plurality of finished products
US7191629B1 (en) 2006-04-13 2007-03-20 Morgan Construction Company Modular rolling mill
US20130086963A1 (en) * 2010-06-09 2013-04-11 Danieli & C. Officine Meccaniche S.P.A. High-speed wire rod rolling apparatus and method
US20140182345A1 (en) * 2011-08-01 2014-07-03 Siemens Aktiengesellschaft Method and plant for producing metal rolled products

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ITPN20010011A1 (it) * 2001-02-15 2002-08-16 Sms Demag Aktiengesellshaft Impianto perfezionato di colata continua e laminazione a caldo per laproduzione in parallelo simultanea di barre o fili.
ITMI20050315A1 (it) † 2005-03-02 2006-09-03 Danieli Off Mecc Impianto compatto di produzione in continuo di barre e-o profili
ITVI20110074A1 (it) * 2011-04-01 2012-10-02 Sms Meer Spa Apparato per la lavorazione dell'acciaio ad alto risparmio energetico e metodo relativo
ITTV20110131A1 (it) * 2011-09-29 2013-03-30 Pert S R L Con Unico Socio Macchina per la laminazione a caldo di vergelle ed affini
ITVI20120122A1 (it) * 2012-05-23 2013-11-24 Invimec Srl Laminatoio perfezionato
GB2531073A (en) * 2014-10-10 2016-04-13 Teng Pong David Method and apparatus for producing steel intermediate products
CN105170647A (zh) * 2015-08-07 2015-12-23 辽宁科技大学 一种金属板带材连续成卷横纵轧制的方法
CN109487100B (zh) * 2018-11-29 2020-01-17 长江师范学院 一种导电铝合金杆连铸连轧及硼化处理方法及装置

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ATE283736T1 (de) 2004-12-15
DE50201653D1 (de) 2005-01-05
US20020189075A1 (en) 2002-12-19
ITUD20010098A1 (it) 2002-11-25
JP2003010904A (ja) 2003-01-15
EP1262248A1 (de) 2002-12-04
EP1262248B1 (de) 2004-12-01

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